[INTERNAL] sap.m.Slider: unit tests code documentation improvements
[INTERNAL] sap.m.Slider: unit tests code documentation improvements

Change-Id: Ibaceb0b856fcd47b5fd75e5c62409f59f8875dde

SAP/openui5,olirogers/openui5,nzamani/openui5,olirogers/openui5,cschuff/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,nzamani/openui5,nzamani/openui5,SQCLabs/openui5,olirogers/openui5,SQCLabs/openui5,SAP/openui5,cschuff/openui5,SAP/openui5